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Journal of Applied Oral Science: Revista FOB

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https://www.readbyqxmd.com/read/27812625/prevalence-and-morphometric-analysis-of-three-rooted-mandibular-first-molars-in-a-brazilian-subpopulation
#1
Clarissa Teles Rodrigues, Christiano de Oliveira-Santos, Norberti Bernardineli, Marco Antonio Hungaro Duarte, Clovis Monteiro Bramante, Paloma Gagliardi Minotti-Bonfante, Ronald Ordinola-Zapata
Objectives: To determine the prevalence of three-rooted mandibular molars in a Brazilian population using cone beam computed tomography (CBCT) and to analyze the anatomy of mandibular first molars with three roots through micro-CT. Material and Methods: CBCT images of 116 patients were reviewed to determine the prevalence of three-rooted first mandibular molars in a Brazilian subpopulation. Furthermore, with the use of micro-CT, 55 extracted three-rooted mandibular first molars were scanned and reconstructed to assess root length, distance between canal orifices, apical diameter, Vertucci's classification, presence of apical delta, number of foramina and furcations, lateral and accessory canals...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812624/prevalence-severity-and-risk-indicators-of-gingival-inflammation-in-a-multi-center-study-on-south-american-adults-a-cross-sectional-study
#2
Paola Carvajal, Mariel Gómez, Sabrina Gomes, Ricardo Costa, Andres Toledo, Fernando Solanes, Hugo Romanelli, Rui Oppermann, Cassiano Rösing, Jorge Gamonal
Objectives: The aim of this study is to investigate the prevalence and severity of gingival inflammation and associated risk indicators in South American adults. Material and Methods: Multi-stage samples totaling 1,650 adults from Porto Alegre (Brazil), Tucumán (Argentina), and Santiago (Chile) were assessed. The sampling procedure consisted of a 4-stage process. Examinations were performed in mobile dental units by calibrated examiners. A multivariable logistic regression model was utilized for associating variables as indicators of gingival inflammation (GI) (Gingival Index ≥0...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812623/fragile-x-syndrome-panoramic-radiographic-evaluation-of-dental-anomalies-dental-mineralization-stage-and-mandibular-angle
#3
Aida Sabbagh-Haddad, Denise Sabbagh Haddad, Edgard Michel-Crosato, Emiko Saito Arita
Objective: The purpose of this study was to evaluate the dental radiographic characteristics as described in 40 records of patients with panoramic radiography. Material and Methods: The patients were in the range of 6-17 years old, and were divided into two groups (20 subjects who were compatible with the normality standard and 20 individuals diagnosed with the FXS), which were matched for gender and age. Analysis of the panoramic radiographic examination involved the evaluation of dental mineralization stage, mandibular angle size, and presence of dental anomalies in both deciduous and permanent dentitions...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812622/inflammatory-response-of-human-dental-pulp-to-at-home-and-in-office-tooth-bleaching
#4
Maysa Magalhães Vaz, Lawrence Gonzaga Lopes, Paula Carvalho Cardoso, João Batista de Souza, Aline Carvalho Batista, Nádia Lago Costa, Érica Miranda Torres, Carlos Estrela
Objective: This study evaluated the inflammatory responses of human dental pulp after the use of two bleaching techniques. Material and Methods: Pulp samples were collected from human third molars extracted for orthodontic reasons and divided into three groups: control - no tooth bleaching (CG) (n=7); at-home bleaching with 15% carbamide peroxide (AH) (n = 10), and in-office bleaching with 38% hydrogen peroxide (IO) (n=12). Pulps were removed and stained with hematoxylin-eosin for microscopic analysis of inflammation intensity, collagen degradation, and pulp tissue organization...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812621/the-effect-of-various-kinematics-on-postoperative-pain-after-instrumentation-a-prospective-randomized-clinical-study
#5
Hakan Arslan, Ruslan Khalilov, Ezgi Doğanay, Ertugrul Karatas
Objective: To evaluate various kinematic movements on postoperative pain using a Reciproc system. Material and Methods: Fifty-six molar teeth were divided into four groups according to kinematics as follows: continuous rotation, 360° CCW - 30° CW, 270° CCW - 30° CW, and 150° CCW - 30° CW. Preoperative and postoperative pain levels using visual analogue scale (VAS), percussion pain, and analgesic intake were recorded for each subject. Postoperative pain levels at 1, 3, 5, and 7 d were evaluated...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812620/evaluation-of-the-force-generated-by-gradual-deflection-of-orthodontic-wires-in-conventional-metallic-esthetic-and-self-ligating-brackets
#6
Manoela Fávaro Francisconi, Guilherme Janson, José Fernando Castanha Henriques, Karina Maria Salvatore de Freitas
Objective: The purpose of this study was to evaluate the deflection forces of Nitinol orthodontic wires placed in different types of brackets: metallic, reinforced polycarbonate with metallic slots, sapphire, passive and active self-ligating, by assessing strength values variation according to gradual increase in wire diameter and deflection and comparing different combinations in the different deflections. Material and Methods: Specimens were set in a clinical simulation model and evaluated in a Universal Testing Machine (INSTRON 3342), using the ISO 15841 protocol...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812619/exopolysaccharide-dispelled-by-calcium-hydroxide-with-volatile-vehicles-related-to-bactericidal-effect-for-root-canal-medication
#7
Lei Lei, Meiying Shao, Yan Yang, Mengying Mao, Yingming Yang, Tao Hu
Objective: Enterococcus faecalis is the dominant microbial species responsible for persistent apical periodontitis with ability to deeply penetrate into the dentin. Exopolysaccharides (EPS) contribute to the pathogenicity and antibiotic resistance of E. faecalis. Our aim was to investigate the antimicrobial activity of calcium hydroxide (CH), camphorated parachlorophenol (CMCP), and chlorhexidine (CHX) against E. faecalis in dentinal tubules. Material and Methods: Decoronated single-canal human teeth and semicylindrical dentin blocks were incubated with E...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812618/interaction-of-dental-pulp-stem-cells-with-biodentine-and-mta-after-exposure-to-different-environments
#8
Anastasia Agrafioti, Vasiliki Taraslia, Vanessa Chrepa, Stefania Lymperi, Panos Panopoulos, Ema Anastasiadou, Evangelos G Kontakiotis
Objective: The aim of the present study was to evaluate and compare the cytotoxic effects of Biodentine and MTA on dental pulp stem cells (DPSCs) and to assess cell viability and adherence after material exposure to an acidic environment. Material and Methods: DPSCs were cultured either alone or in contact with either: Biodentine; MTA set for 1 hour; or MTA set for 24 hours. After 4 and 7 days, cell viability was measured using the MTT assay. Biodentine and MTA were also prepared and packed into standardized bovine dentin disks and divided into three groups according to the storage media (n=6/group): freshly mixed materials without storage medium (Group A); materials stored in saline (Group B); materials stored in citric acid buffered at pH 5...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812617/analysis-of-speech-and-tongue-motion-in-normal-and-post-glossectomy-speaker-using-cine-mri
#9
Jinhee Ha, Iel-Yong Sung, Jang-Ho Son, Maureen Stone, Robert Ord, Yeong-Cheol Cho
Objective: Since the tongue is the oral structure responsible for mastication, pronunciation, and swallowing functions, patients who undergo glossectomy can be affected in various aspects of these functions. The vowel /i/ uses the tongue shape, whereas /u/ uses tongue and lip shapes. The purpose of this study is to investigate the morphological changes of the tongue and the adaptation of pronunciation using cine MRI for speech of patients who undergo glossectomy. Material and Methods: Twenty-three controls (11 males and 12 females) and 13 patients (eight males and five females) volunteered to participate in the experiment...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812616/occurrence-and-antimicrobial-susceptibility-of-enteric-rods-and-pseudomonads-isolated-from-the-dental-prostheses-biofilm
#10
Sanrrangers Sales Silva, Maximilo de Oliveira Ribeiro, Francisco Isaac Fernandes Gomes, Hellíada Vasconcelos Chaves, Antonio Alfredo Rodrigues E Silva, Iriana Carla Junqueira Zanin, Francisco Cesar Barroso Barbosa
Objective: To determine the occurrence and the in vitro antimicrobial susceptibility of enteric rods and pseudomonads from the denture biofilm of 52 subjects at the Center for Dental Specialties of Sobral/ Ceara, Brazil. Material and Methods: Denture biofilm was collected and samples plated on MacConkey agar. The isolated bacterial colonies were identified using the BBL Crystal enteric/non-fermenter system. Antibiotic bacterial susceptibility was assessed by the disc diffusion method of amoxicillin, amoxicillin/clavulanic acid, doxycycline, tetracycline, tobramycin, imipenem, cefotaxime, and ciprofloxacin...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812615/porosity-of-temporary-denture-soft-liners-containing-antifungal-agents
#11
Jozely Francisca Mello Lima, Janaína Gomes Maciel, Juliana Hotta, Ana Carolina Pero Vizoto, Heitor Marques Honório, Vanessa Migliorini Urban, Karin Hermana Neppelenbroek
Objective: To evaluate the porosity of a tissue conditioner (Softone) and a temporary resilient liner (Trusoft) modified by minimum inhibitory concentrations (MICs) of antifungal agents for Candida albicans biofilm. Material and Methods: The porosity was measured by water absorption, based on exclusion of the plasticizer effect. Initially, it was determined by sorption isotherms that the adequate storage solution for specimens (65×10×3.3 mm) of both materials was 50% anhydrous calcium chloride (S50)...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812614/reliability-failure-probability-and-strength-of-resin-based-materials-for-cad-cam-restorations
#12
Kiatlin Lim, Adrian U-Jin Yap, Shruti Vidhawan Agarwalla, Keson Beng-Choon Tan, Vinicius Rosa
Objective: This study investigated the Weibull parameters and 5% fracture probability of direct, indirect composites, and CAD/CAM composites. Material and Methods: Discshaped (12 mm diameter x 1 mm thick) specimens were prepared for a direct composite [Z100 (ZO), 3M-ESPE], an indirect laboratory composite [Ceramage (CM), Shofu], and two CAD/CAM composites [Lava Ultimate (LU), 3M ESPE; Vita Enamic (VE), Vita Zahnfabrik] restorations (n=30 for each group). The specimens were polished, stored in distilled water for 24 hours at 37°C...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812613/effects-of-the-application-techniques-of-self-adhesive-resin-cements-on-the-interfacial-integrity-and-bond-strength-of-fiber-posts-to-dentin
#13
Ana Paula Ribeiro do Vale Pedreira, Paulo Henrique Perlatti D'Alpino, Patrícia Nóbrega Rodrigues Pereira, Sasha Braun Chaves, Linda Wang, Leandro Hilgert, Fernanda Cristina Pimentel Garcia
Objective: To evaluate the influence of an application technique of a glass-fiber post using self-adhesive resin cements on the push-out bond strength and the presence of bubbles in the root thirds. The cements were either applied according to the manufacturer's instruction or using a commercial delivering system (Centrix), at which the cement pastes were collected and applied after manipulation. Material and Methods: Self-adhesive resin cements (RelyX U200/3M ESPE-U200; Maxcem Elite/Kerr-MAX; Clearfil SA Cement/Kuraray-CSA) and a conventional cement (RelyX ARC/3M ESPE-ARC) were used to cement a post and applied either based on the manufacturer's instructions or using a Centrix syringe to deliver the cements directly onto the post of choice, or directly into canal...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812612/factors-influencing-orthodontic-treatment-time-for-non-surgical-class-iii-malocclusion
#14
Lívia Monteiro Bichara, Mônica Lídia Castro de Aragón, Gustavo Antônio Martins Brandão, David Normando
Objective: To identify variables and their effect size on orthodontic treatment time of Class III malocclusion. Material and Methods: Forty-five Class III malocclusion cases were selected from 2008 patients' records. Clinical charts, cephalometric radiographs, and pre and posttreatment dental casts were evaluated. Age, sex, PAR index at T1 and T2, overjet, missing teeth, extractions, number of treatment phases, missed appointments, appliance breakages, and cephalometric variables SNA, SNB, ANB, Wits, SnGoGn, CoA, CoGn, IMPA, 1...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812611/the-effect-of-hippophae-rhamnoides-extract-on-oral-mucositis-induced-in-rats-with-methotrexate
#15
Ozan Kuduban, Muhammed Recai Mazlumoglu, Selma Denktas Kuduban, Ertugrul Erhan, Nihal Cetin, Osman Kukula, Oguzhan Yarali, Ferda Keskin Cimen, Murat Cankaya
Objective: To investigate the effect of HRE (Hippophae rhamnoides extract) on oral mucositis induced in rats with MTX. Material and Methods: Experimental animals were divided into groups as healthy (HG), HRE+MTX (HMTX), and control group, which received MTX (MTXC). HMTX group received 50 mg/kg HRE while MTXC and HG groups received equivolume distilled water with gavage once a day. After one hour of HRE and distilled water administration, HMTX and MTXC groups received a single dose of oral MTX 5 mg/ kg...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812610/sustained-drug-delivery-system-a-promising-therapy-for-denture-stomatitis
#16
EDITORIAL
Karin Hermana Neppelenbroek
No abstract text is available yet for this article.
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27556214/occlusal-changes-secondary-to-temporomandibular-joint-conditions-a-critical-review-and-implications-for-clinical-practice
#17
Waleska Caldas, Ana Cláudia de Castro Ferreira Conti, Guilherme Janson, Paulo César Rodrigues Conti
OBJECTIVES: The aim of this article is to present the most commonly occlusal changes secondary to TMD. METHODS: The clinical presentation of these conditions is discussed. Details regarding diagnosis, treatment, and follow-up of patients presenting TMD prior or during treatment are also presented. CONCLUSIONS: All plans for irreversible therapy should be preceded by a meticulous analysis of TMD signs and symptoms in such a way that patients are not submitted to irreversible treatment, based on an untrue occlusal relationship, secondary to articular and/or muscular disorders...
July 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27556213/effect-of-silver-nanoparticles-on-the-physicochemical-and-antimicrobial-properties-of-an-orthodontic-adhesive
#18
Felipe Weidenbach Degrazia, Vicente Castelo Branco Leitune, Isadora Martini Garcia, Rodrigo Alex Arthur, Susana Maria Werner Samuel, Fabrício Mezzomo Collares
OBJECTIVE: This study aimed to incorporate silver nanoparticle solutions (AgNP) in an orthodontic adhesive and evaluate its physicochemical and antimicrobial properties. MATERIAL AND METHODS: Silver nanoparticle solutions were added to a commercial adhesive in different concentrations (w/w): 0%, 0.11%, 0.18%, and 0.33%. Shear bond strength (SBS) test was performed after bonding metal brackets to enamel. Raman spectroscopy was used to analyze in situ the degree of conversion (DC) of the adhesive layer...
July 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27556212/higher-prevalence-and-gene-amplification-of-hpv16-in-oropharynx-as-compared-to-oral-cavity
#19
Hideo Shigeishi, Masaru Sugiyama, Kouji Ohta, Mohammad Zeshaan Rahman, Masaaki Takechi
OBJECTIVE: The objective of this study was to clarify differences regarding HPV16 infection and gene amplification between the oral cavity and oropharynx in healthy individuals. MATERIAL AND METHODS: The subjects were 94 healthy asymptomatic individuals (41 males, 53 females; mean age 58.6 years, range 16-97 years) who visited the Department of Oral and Maxillofacial Reconstructive Surgery of the Hiroshima University Hospital from 2014 to 2015. Oral epithelial cells were collected from oral rinse and pharynx gargle samples and placed in saline...
July 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27556211/influence-of-resin-cement-shade-on-the-color-and-translucency-of-ceramic-veneers
#20
Daiana Kelly Lopes Hernandes, Cesar Augusto Galvão Arrais, Erick de Lima, Paulo Francisco Cesar, José Augusto Rodrigues
OBJECTIVE: This in vitro study evaluated the effect of two different shades of resin cement (RC- A1 and A3) layer on color change, translucency parameter (TP), and chroma of low (LT) and high (HT) translucent reinforced lithium disilicate ceramic laminates. MATERIAL AND METHODS: One dual-cured RC (Variolink II, A1- and A3-shade, Ivoclar Vivadent) was applied to 1-mm thick ceramic discs to create thin RC films (100 µm thick) under the ceramics. The RC was exposed to light from a LED curing unit...
July 2016: Journal of Applied Oral Science: Revista FOB
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